RabbitMQ Java client: Unvalidated Class.forName in JSON-RPC ProcedureDescription enables arbitrary class loading

Date Aug 18, 2026
Type Vendor advisory
Signal High-risk advisory
Vendor / Product Maven ยท com.rabbitmq:amqp-client
CVE CVE-2026-63337
High-risk advisory CVE-2026-63337

Summary

RabbitMQ Java client: Unvalidated Class.forName in JSON-RPC ProcedureDescription enables arbitrary class loading

Why it matters

GitHub has published a reviewed security advisory for com.rabbitmq:amqp-client. Prioritize it with other application dependency updates.

Operator check

Check whether com.rabbitmq:amqp-client is present in application dependency manifests, lockfiles, or build images. Review the GitHub advisory and upgrade to a patched version where available. CVSS score: 7.5.

Sources

PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.